DAS650 Digital Instruments
Discontinued Item
(DAI Part# 101-02194)
The aviation industry has an enormous need for
more reliable and cost effective tools for performing
standard pitot-static system leak tests, FAR 91-411
and/or FAR 43 Appendix E certifications. These
needs motivated Barfield to design and produce
digital replacement instruments for the Barfield
1811 series and equivalent testers.
The DALT55 Digital Altimeter and the DAS650
Digital Airspeed indicator were designed to
be a direct replacement to the current analog
instruments. Being of similar shape and size of
existing analog instruments, the new digital
version fits all Barfield 1811 series and most
other manufacturers of analog pitot-static test
sets. Standard analog instruments provided in a
Barfield 1811 series or equivalent pitot-static tester
are delicate mechanical devices easily damaged
or destroyed by inexperienced or distracted
technicians. The DALT55 and DAS650 use stateof-
the-art transducer technology for pressure
measurements making them virtually immune to
the frequent and costly repairs generally associated
with analog instruments.
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